Measurement E151M1374

Experiment:	EG4
Year:	2016	Experiment comment: Final asymmetry results for the ep-> e pi+ (n) channel extracted from CLAS/EG4 data obtained using a longitudinally polarized beam and a longitudinally polarized NH3 target (CAA HS07-02).
Spokesperson:	Xiaochao Zheng
Reaction:	ep → π⁺n
Polarization:	beam (longitudinal), target (longitudinal)
Quantity:	A_LL
ε_L:	0.0389
Q²:	0.0205 GeV²
W:	1415.0 GeV
E_beam:	1.0539 GeV
ε:	0.7036

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.25	42.0	1.5815	0.7504
0.25	54.0	-0.2529	0.9593
0.35	30.0	0.1545	0.9866
0.35	42.0	-0.7212	0.6795
0.35	54.0	-0.5237	0.6322
0.35	66.0	-0.4193	0.9765
0.45	18.0	-1.5484	0.9545
0.45	30.0	-0.58	0.7771
0.45	42.0	0.2916	0.5959
0.45	54.0	0.1093	0.5889
0.45	66.0	-0.4155	1.0309
0.45	222.0	-0.9862	0.8601
0.45	234.0	-0.5028	0.7695
0.55	30.0	-0.7944	0.7304
0.55	42.0	-0.5231	0.6479
0.55	54.0	-1.3316	0.567
0.55	66.0	-1.0016	0.9882
0.55	150.0	-2.265	0.7928
0.55	162.0	1.0844	0.812
0.55	174.0	0.2426	0.9001
0.55	210.0	0.7678	0.8248
0.55	222.0	-0.227	0.6657
0.55	234.0	-0.2387	0.6243
0.55	246.0	-0.3839	0.5586
0.55	258.0	-0.4266	0.7313
0.65	30.0	-0.1453	0.9806
0.65	138.0	-0.0399	0.96
0.65	150.0	0.1714	0.8158
0.65	162.0	-0.0693	0.8783
0.65	174.0	0.4301	0.8171
0.65	210.0	-1.3854	0.7563
0.65	222.0	0.1886	0.5956
0.65	234.0	-0.9964	0.4592
0.65	246.0	-0.0602	0.5012
0.65	258.0	-0.3561	0.6117
0.75	150.0	0.2987	0.6528
0.75	162.0	-0.5311	0.781
0.75	210.0	0.5265	0.7818
0.75	222.0	-0.0189	0.6055
0.75	234.0	-0.0769	0.5017
0.75	246.0	-0.291	0.4886
0.75	258.0	0.4	0.6136
0.85	210.0	-0.671	0.8775
0.85	222.0	-0.0461	0.6285
0.85	234.0	0.7683	0.5513
0.85	246.0	-0.0666	0.4835
0.85	258.0	0.493	0.659
0.85	270.0	0.6286	0.7996
0.95	246.0	-0.3412	0.6813

CLAS Physics Database